Sash holder



July 16, 1929. p, UR I 1,721,102

SASH HOLDER Filed Oct. 19, 1927 amel 1km R P Brandenburg Patented July16, 1929.

PETER IP. BRANDENBURG, 0F ESCANABA, MICHIGAN.

SASI-I HOLDER.

.Application filed October 19, 1927. Serial No. 227,330.

This invention relates to devices for holding a window sash in a setposition and has for its object the provision of a simple andinexpensive device which will operate efliciently to hold the sash andby theuse of which the necessity of the usual sash weights and cords andpulleys will be obviated.

The invention provides adevice which may be easily applied to any windowsashand which may be easily manipulated' to permit the sash to be raisedor lowered when desired while, at the same time, operating automaticallyto'hold the sash in set position.

The invention is illustrated in the accompanying drawings and consistsin certain novel features which will be hereinafter first fullydescribed and then more particularly pointed out in the appended claim.

In the drawing:

Figure 1 is an edge elevation of a window sash having my improved holderapplied thereto.

Figure 2 is a front elevation with parts in section, showing the devicein position in a sash and showing its relation to the window frame.

In the drawing, the reference numeral 1 indicates a portion of a windowsash which may be of any well known style and 2 indicates a portion ofthe window frame in which the sash is mounted for vertical movement. Incarrying out the present invention an irregular recess is formed in theedge of the sash and this recess provides an upper chamber 2, a lowerchamber 3, and an intermediate chamber 4 which tapers downwardly, asclearly shown in Figure 2. The intermediate chamber is lined with abacking plate 5 fitting closely against the rear wall of the chamber andmay be cylindrical in its upper portion, the lower extremity of thisbacking plate providing a lip 6 which is engaged in an opening providedtherefor in a face plate 7 and upset in said opening so that the liningand the face plate will be firmly secured together. The upper end of thelining or backing plate is bent forward or outwardly at a right angle toprovide a top plate 8 which is likewise connected with the face plateand forms an abutment for an expansion spring 9 coiled within theintermediate chamber 4 and resting at its lower end upon a wedging ball10. The face plate is provided with a slot 11 between its ends whichslot is substantially co-extensive with the intermediate chamber 4 andprovides an opening through which the. wedging ball may project to bindagainst the window frame 2,

asv shown clearly in Figure 2. The .upper portion of the slot is reducedin width, as shown at 12 in Figure 1, so that the edges of the slot formretaining lips wherebythe spring 9 will be held within the intermediatec iamber 4. It will be seen at once that the spring 9 tends constantlyto expand and force the wedging ball to the lower end of the taperedportion of the chamber 4 so that it will be wedged between the sash andthe window frame and thereby hold the sash in any posi tion in which itmay be set. The invention is illustrated in the accompanying drawings asapplied to the lower sash but it may, of course, be applied to the uppersash and when applied to the upper sash it will be relatively inverted,and it will be understood that any movement to open the sash will causethe wedging ball to wedge or bind more tightly between the sash and thewindow frame while closing movement of the sash will cause the ball toride upwardly within thetapered chamber toward the wider end thereof andconsequently automatically release the sash. In order that the ball maybe held in an inoperative position while the sash is being opened, Iprovide a rock shaft 13 which is journaled through the stile of the sashand is equipped at'its outer end with a crank 14 adapted to swingtransversely of the chamber 4 in the lower portion thereof below theball so that if the crank is swung upwardly, the ball will be raised andrelease the sash, as will be understood upon reference to the dottedlines in Figure 1. Reverse movement of the shaft will, of course, permitthe ball to move downwardly to lock the sash. To

manipulate .the rock shaft a handle member 15 of any approved form ismounted upon the inner end thereof so that it may be easily ,rocked whendesired.

The face plate 7 is formed with lateral extensions 16 whereby to formbosses fitting within the respective chambers Q'and 3 and having theirextremities turned outwardly, as shown at 17, so that supports andabutments for expansion springs 18 are provided. Openings are formedthrough the face plate in axial alinement with the bosses and guiding orrunning balls 19 are mounted in the bosses to project through saidopenings and engage the window frame, as shown in Figure 2, being heldin constant engagement with the frame by the springs 18 in an obviousmanner. The upper and lower balls 19 provide spaced bearing points forthe sash so that it will be held to a vertical rectilinear path and anypossible tendency of the sash to rock about the wedging ball will beovercome so that the sash will move easily at all times when an openingor closing force is applied thereto. The opposite side of the sash neednot be equipped with the holder and the guiding elements but may runbetween the beads of the window frame in the usual manner, and it willbe noted that the expansion of the springs 18 will cause the sash tomove laterally with respect to the guiding or running balls and therebyeffect a firm engagement of the sash within the groove of the windowframe at the opposite side of the sash so that rattling of the sashwillbe avoided. If so desired, a facing strip of metal may be applied to thewindow frame so as to minimize wear and avoid the formation ofdepressions or dents in the frame from the pressure of the several ballsthereagainst. The wedging ball 10 is preferably given a roughenedsurface so as to in crease its wedging action, and the springs 18 areheld against lateral displacement by side plates 20 at the upper andlower ends of the casing. p

The device is especially desirable for car windows as it will hold thewindow against rattling, notwithstanding the vibration of the car, whilefacilitating the opening of the window when desired.

Having thus described the invention, what I claim is:

The combination of a window sash having a tapered chamber in its stileopening through the outer edge thereof, a wedging ball mounted in saidchamber, an expansion spring resting within said chamber and bearingupon the ball to hold the same toward the tapered end thereof projectingthrough the edge of the stile to bind against a window frame, a rockshaft mounted in the stile parallel with the front face thereof, and acrank at the outer end of the rock shaft in 'engagen'ient with the ballat the side opposite the spring whereby rocking of the shaft willrelease the ball from binding engagement Within the recess to permitopening movement of the sash.

In testimony whereof I afiix mysignature.

PETER P. BRANDENBURG. n 8.

